When interacting with supermarket cashiers, maintaining courtesy and respect are the most important prerequisites. The following are some practical suggestions that can improve efficiency and reduce unnecessary communication, while ensuring that it does not hurt the feelings of others.： **1. Prepare in advance to reduce communication needs** -Place the product barcode face up uniformly for quick scanning -Prepare the membership code/payment code in advance (can be set to the phone lock screen interface) -Use unmanned services such as self-service cashier counter (if any) or scan code to purchase **2. Make good use of nonverbal communication** -Smile and nod instead of greetings -Use your finger to signal to the scanner that you are ready to pay -Prepare sticky notes and write down key information such as "No shopping bag required/thank you" **3. Concise vocabulary reserve** - "Just scan the code to pay directly, thank you" - "No need to print a receipt" -"I can bag it myself" **4. Technical alternatives** -Use the "shopping cart sharing" function of the supermarket APP (supported by some supermarkets) - Choose a delivery service instead of shopping in the store -Wear headphones (but it is recommended to remove them at checkout to show respect) **Special reminder：** -Avoid behaviors that may be misunderstood by staff such as using mobile phones during calls/wearing masks to speak -Efficiency is usually higher during peak checkout periods -Observable selection of cashier channels that seem to be busy The core of these methods is to reduce the necessity of communication by improving one's own preparation, rather than deliberately treating service personnel indifferently. Proper eye contact and nodding can maintain basic social etiquette.